Process of producing paint-oil.



UNI'In TATES Patented May 26, 1903.

ATENT FFICE.

EDWARD O. HOLTON, OF CLEVELAND, OHIO, ASSIGNOR OF ONE-HALF TO THESHERW'lN-WILLIAMS COMPANY, OF CLEVELAND, OHIO, A CORPO- RATION OF OHIO.

PROCESS OF PRODUCING PAINTOI L.

SPECIFICATION forming part of Letters Patent No. 728,918, dated May 26,1903.

Application filed September 25,1902.

To all whom it may concern:

Be it known that I, EDWARD O. HOLTON, a citizen of the United States,and a resident of Cleveland, county of Cuyahoga, and State of Ohio, haveinvented a new and useful Improvement in Processes of Producing Paint-Oils, of which the following is a specification, the principle of theinvention being herein explained and the best mode in which I havecontemplated applying that principle, so as to distinguish it from otherinventions.

My invention relates to processes of producing paint-oils, and moreparticularly to that class of oils which are used as substitutes forlinseed-oil, and has for its object the pro duction of such substitutesin a manner more elficacious and economical than that of the methodshitherto employed.

Heretofore oils with the drying qualities of so linseed-oil and intendedas a substitute for that oil have been prepared from a limited number ofanimal and vegetable oils diluted with varying amounts of some petroleumproduct or some other. solvent by treating same with from fifteen tothirty per cent. of sulfur chlorid, the amount depending upon the natureof the oil. The difficulty connected with this method has been that mostanimal and vegetable oils when thus treated 0 with sulfur chlorid arerendered solid and are not then soluble in those solvents which areusually employedfor thinningpaint products. Furthermore, those few oilswhich are soluble in the usual solvents which are employed for paintproducts require so much sulfur chlorid before the proper dryingqualities are imparted to them that the cost of the finished product ismaterially greater than that sustained in the production of suchsubstitutes in the manner that I shall hereinafter describe.

In my improved process I do not use the raw oils, but those oils thathave been blown, the production of which is a process familiar to anyone skilled in the art and the claim for the invention in the method ofdoing which forms no part of this application. l/Vith these blown oils Imix by simply agitating from one-half to one per cent. of sulfur chloridin solution in a hydrocarbon. It is very essen- Serial No. 124,826. (Nospecimens.)

tial that the sulfur chlorid be diluted with a hydrocarbon before beingmixed with the blown oil, to what extent, however, will be hereinafterdescribed, since otherwise the action would be too violent and wouldeffect a localized and imperfect result. To the mixture of blown oil andsolution of sulfur chlorid in hydrocarbon I add approximately an equalamount of kerosene or some other petroleum product, thinning theresultant oil, if it be still too thick,with some cheap solventbelonging to the hydrocarbons of the paraffin series, preferably benzin,or I may use a hydrocarbon belonging to the benzole series. Thesesolvents may be added either before or after the treatment with thesolution of sulfur chlorid and hydrocarbon. The amount of hydrocarbonused with the sulfur chlorid previous to mixing with the blown oil willI depend upon atmospheric and other conditions readily understood bythose skilled in the art. In cold weather it would be preferable to usea greater amount of hydrocarbon with the sulfur chlorid before mixingwith the blown oil than in warm weather. Again, if the agitation of thesulfur chlorid with the blown oil was to be made with a powerfulmechanical agitator a smaller amount of hydrocarbon would be requiredthan if a less powerful agitator were used. It may occur under certainconditions that it would be the best practice to mix the sulfur chloridwith the whole amount of kerosene before mixing with the blown oil.Experiment has proved that a mixtureof approximately twenty parts ofhydrocarbon to one of sulfur chlorid is the most efiective under normalatmospheric conditions; but the existing conditions at the time ofmixing must be observed in order to secure the best results, and thedetails must be left to the good judgment and skill of the operator, thebroad idea merely involving thetreatment of blown oils with sulfurchlorid in solution with a hydrocarbon. By thus using blown oils insteadof the raw products all Vegetable and animal oils can be utilized,because the amount of sulfur. chlorid that is then necessary to producethe drying qualities required in the finished product is comparativelyso small that the oil is turned into a mass which is soft and pliable,like rubber, and not into the solid body which is produced by the use offifteen per cent. or more of sulfur chlorid and which solid body issoluble in the .ordinary solvents used for thinning paints in the caseof only a very few oils, as has been heretofore mentioned.

The material reduction in the cost of production of the finished productby the use of one per cent. of sulfur chlorid instead of fifteen percent. or more is very evident.

I am aware that some oils other than linseed-oil are blown and thatthere are commercial products upon the market under the term blown oil;but they are used for special purposes in special cases only and are notofiered for sale for any particular use, and, furthermore, in no caseare they utilized in the manner heretofore described and hereinafterclaimed in my application.

Other modes of applying the principle of my invention may be employedinstead of the one explained, change being made as regards the processherein disclosed, provided the means stated by any one of the followingclaims or the equivalent of such stated means be employed.

I therefore particularly point out and dis= tinctly claim as myinvention- 1. A step in a method of producing paintoils, consisting of:treating blown oils with sulfur chlorid in solution in a hydrocarbon.

2. Steps in a method of producing paintoils, consisting of treatingblown oils with sulfur chlorid in solution in a hydrocarbon, andthinning this mixture with some petro leum product.

3. Steps in a method of producing paintoils, consisting of: treatingblown oils with approximately one per cent. of sulfur chlorid insolution in approximately twenty parts of a hydrocarbon, diluting thisproduct with an amount of some petroleum product approximately equal tothe mixture of blown oil and solution of sulfur chlorid in hydrocarbon,and thinning the resultant mixture with benzin down to a consistencywhere it can be used Signed by me this 28d day of September, 1902.

EDWARD O. HOLTON. Attest:

D. T. DAVIES,

GEO. W. SAYVVELL.

